81561. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4567.   Softbound, usual signs of use, text in very good condition.    $5.00

81562. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4568.   Softbound, usual signs of use, text in very good condition.    $5.00

81563. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4569.   Softbound, usual signs of use, text in very good condition.    $5.00

81564. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4570.   Softbound, usual signs of use, text in very good condition.    $5.00

81566. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4572.   Softbound, usual signs of use, text in very good condition.    $5.00

81567. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4573.   Softbound, usual signs of use, text in very good condition.    $5.00

81568. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 218, Number 4576.   Softbound, usual signs of use, text in very good condition.    $5.00

81555. AAAS.   Science.   American Association for the Advancement of Science, 1982, Science, Volume 217, Number 4561.   Softbound, usual signs of use, text in very good condition.    $5.00

81409. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4428.   Softbound, usual signs of use, text in very good condition.    $5.00

81422. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4439.   Softbound, usual signs of use, text in very good condition.    $5.00

81367. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5428.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81369. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5430.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81371. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5432.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81373. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5434.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81402. AAAS.   Science.   American Association for the Advancement of Science, 1992, Science, Volume 255, Number 5050.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81403. AAAS.   Science.   American Association for the Advancement of Science, 1992, Science, Volume 255, Number 5051.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81404. AAAS.   Science.   American Association for the Advancement of Science, 1992, Science, Volume 255, Number 5052.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81405. AAAS.   Science.   American Association for the Advancement of Science, 1990, Science, Volume 250, Number 4986.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81406. AAAS.   Science.   American Association for the Advancement of Science, 1991, Science, Volume 251, Number 4991.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81359. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5420.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81408. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4427.   Softbound, usual signs of use, text in very good condition.    $5.00

81358. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5419.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81410. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4429.   Softbound, usual signs of use, text in very good condition.    $5.00

81411. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4430.   Softbound, usual signs of use, text in very good condition.    $5.00

81412. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4431.   Softbound, usual signs of use, text in very good condition.    $5.00

81413. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4432.   Softbound, usual signs of use, text in very good condition.    $5.00

81416. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4433.   Softbound, usual signs of use, text in very good condition.    $5.00

81417. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4434.   Softbound, usual signs of use, text in very good condition.    $5.00

81418. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4435.   Softbound, usual signs of use, text in very good condition.    $5.00

81419. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4436.   Softbound, usual signs of use, text in very good condition.    $5.00

81420. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4437.   Softbound, usual signs of use, text in very good condition.    $5.00

81479. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 212, Number 4496.   Softbound, usual signs of use, text in very good condition.    $5.00

81407. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4426.   Softbound, usual signs of use, text in very good condition.    $5.00

81335. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5397.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81323. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5384.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81324. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5386.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81325. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5387.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81326. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5388.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81327. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5389.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81328. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5390.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81329. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5391.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81330. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5392.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81331. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5393.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81332. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5394.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81362. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5423.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81334. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5396.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81423. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4440.   Softbound, usual signs of use, text in very good condition.    $5.00

81341. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5402.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81342. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5403.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81346. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5407.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00